When I tried to open a document on my office's computer (Windows) that I had previously modified on my personal one (Ubuntu), I couldn't because the Ubuntu version of LyX was more recent (2.3.0 instead of 2.2.3).
Thus, I tried to install LyX 2.3 on Windows through Cygwin (for 2 hours), but I failed, because the README.txt does not explain how to execute LyX. Furthermore, the documentation on LyX website is outdated. Indeed, I get the error
ERROR: wget ftp://ftp.lyx.org/pub/lyx/stable/2.1.x/lyx-2.3.0.tar.xz failed
which shows that this procedure was suited for LyX 2.1, and has not been updated.